I believe it's the outsized proportion of FAANMG employees. Bay Area should be obvious but Seattle has gobs of $250k comp Amazon and Microsoft employees, much more than outposts in NYC.
$400k * 0.6 = $240k post tax
$240k - $36k rent = $204k
$204k - $50k annual expenses = $154k
So if you just work that job for 3-4 years you'll easily have a heavy down payment for a house, assuming no promo, no raises.
If you work the job for 7-8 years you can buy a house (more like a townhouse) all in cash. Not going to be the best house on the market, but it's doable.
This is all not considering investing in the stock market, raises, being frugal with your expenses, living with roommates to save up a bit, etc. there's lots of ways to parlay more money than most other people will ever make annually into a home